Nd evidence for Proterozoic crustal development in the Belt–Purcell Supergroup

@article{Frost1984NdEF,
  title={Nd evidence for Proterozoic crustal development in the Belt–Purcell Supergroup},
  author={Carol D. Frost and R K O'nions},
  journal={Nature},
  year={1984},
  volume={312},
  pages={53-56}
}
A knowledge of the chemical and isotopic characteristics of the continents as they existed in the past is essential to an understanding of their evolution1–7. Vestiges of these characteristics remain in the sedimentary record. For example, the character and crustal residence age4 of ancient continental crust has been deduced from the Sm–Nd isotopic patterns of clastic sediments that have survived to the present day4,6,8. We report here Sm–Nd isotopic measurements from the Belt–Purcell… CONTINUE READING

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